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| Mirrors > Home > MPE Home > Th. List > vsnid | Structured version Visualization version GIF version | ||
| Description: A setvar variable is a member of its singleton. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| vsnid | ⊢ 𝑥 ∈ {𝑥} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 3446 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | 1 | snid 4621 | 1 ⊢ 𝑥 ∈ {𝑥} |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 {csn 4582 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-v 3444 df-sn 4583 |
| This theorem is referenced by: exsnrex 4639 rext 5405 unipw 5407 xpdifid 6136 opabiota 6926 fnressn 7115 fressnfv 7117 snnex 7715 frrlem12 8251 frrlem14 8253 mapsnd 8838 findcard2d 9105 ac6sfi 9198 iunfi 9257 elirrvOLD 9517 kmlem2 10076 fin1a2lem10 10333 hsmexlem4 10353 iunfo 10463 modfsummodslem1 15729 lcmfunsnlem2lem1 16579 coprmprod 16602 coprmproddvdslem 16603 c0snmgmhm 20415 lbsextlem4 21133 frlmlbs 21769 coe1fzgsumdlem 22264 evl1gsumdlem 22317 maducoeval2 22601 dishaus 23343 dis2ndc 23421 dislly 23458 dissnlocfin 23490 comppfsc 23493 txdis 23593 txdis1cn 23596 txkgen 23613 isufil2 23869 alexsubALTlem4 24011 tmdgsum 24056 dscopn 24534 ovolfiniun 25475 volfiniun 25521 jensen 26972 uvtx01vtx 29488 cplgr1vlem 29520 unidifsnel 32628 gsumpart 33163 vieta 33763 extdg1id 33850 irngss 33871 esum2dlem 34276 bnj1498 35243 funen1cnv 35271 fineqvnttrclselem2 35306 wevgblacfn 35331 cvmlift2lem1 35524 funpartlem 36164 exeltr 36693 topdifinffinlem 37629 fvineqsneq 37694 pibt2 37699 finixpnum 37885 mbfresfi 37946 pclfinN 40305 sn-iotalem 42622 mzpcompact2lem 43137 dvmptfprod 46332 fourierdlem48 46541 sge0sup 46778 funressnvmo 47434 dfclnbgr6 48245 dfsclnbgr6 48247 termco 49869 termcarweu 49916 diag1f1o 49922 diag2f1o 49925 |
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